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Re: Possible NULL pointer deferenced (src/interfaces/libpq/fe-exec.c(line 563) - Mailing list pgsql-hackers

From Ranier Vilela
Subject Re: Possible NULL pointer deferenced (src/interfaces/libpq/fe-exec.c(line 563)
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Msg-id CAEudQApdL+znP4xAdPieKGsNa+qzuG+bMJii9Ats6n9xbaTfWQ@mail.gmail.com
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In response to Re: Possible NULL pointer deferenced (src/interfaces/libpq/fe-exec.c (line 563)  (Tom Lane <tgl@sss.pgh.pa.us>)
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Em dom., 21 de jun. de 2020 às 02:16, Tom Lane <tgl@sss.pgh.pa.us> escreveu:
Ranier Vilela <ranier.vf@gmail.com> writes:
> The res->curBlock pointer possibly, can be NULL here (line 563).

No, it can't.

To get to that line, nBytes has to be > 0, which means res->spaceLeft
has to be > 0, which cannot happen while res->curBlock is NULL.
Hi Tom, thanks for answer.

regards,
Ranier Vilela

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